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A deputy fatally shot a man who was chasing and stabbing his aunt in Rosemead on Friday night, Los Angeles County sheriff's officials said.

The suspect was pursuing his aunt after stabbing her repeatedly when he was shot dead by a Los Angeles County Sheriff's deputy, said Deputy Peter Gomez, of the Los Angeles County Sheriff's Headquarters bureau.

The unidentified woman was hospitalized in serious condition with stab wounds, but is expected to survive, according to a department statement.

No deputies were injured in the confrontation, the statement said.

The shooting, in the 2400 block of Earle Avenue, east of San Gabriel Boulevard, was reported at 6:45 p.m. Friday, said Deputy Tony Moore of the Los Angeles County Sheriff's Headquarters Bureau.

Moore said the suspect was pronounced dead at the scene.

The actions of the unnamed deputy saved the woman's life, Sheriff Lee Baca told reporters at the scene.

"The young man was extremely violent," Baca said of the stabbing suspect.

Baca said the suspect stabbed the woman in the throat, and was stabbing her in the back as he chased her into the driveway of the residence where the shooting occurred.

Baca said one deputy fired a Taser at the suspect, but "that didn't work," he said.

"A second deputy fired one shot,'' Baca said. ``The suspect was hit in the chest and fell to the ground. Moments later, the suspect was deceased."

The woman was taken to County-USC Medical Center, said Rey Dong, a supervising dispatcher at the Los Angeles County Fire Department.

The media statement issued by the Sheriff's Headquarters bureau said deputies initially responded to a family disturbance/person intoxicated call at the residence.

The statement said that as deputies talked to family members, the victim, with a stab wound to her neck, began to walk toward them from a side driveway of the residence, followed by the suspect, who attempted to stab her again.